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fftw

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

Usage

To make this library available, run one the following:

module load FFTW/3.3.8-gompi-2019b
module load FFTW/3.3.8-gompi-2020a
module load FFTW/3.3.8-gompi-2020b
module load FFTW/3.3.10-GCC-11.3.0
module load FFTW/3.3.10-GCC-12.2.0
module load FFTW.MPI/3.3.10-gompi-2022a
module load FFTW.MPI/3.3.10-gompi-2022b

gompi versions are a subset of the foss toolchain and also load GCC and OpenMPI
gompic versions are a subset of the fosscuda toolchain and also load GCC, OpenMPI and CUDA.

Also see imkl-fftw which is a library that combines FFTW library with Intel’s Math Kernel Library (IMKL) to provide optimized FFT routines that are specifically optimized for Intel processors.